401(k)
2023 plan-year 401(k) DOL Form 5500

AMEREN CORPORATION SAVINGS INVESTMENT PLAN

ERISA Form 5500 plan record drawn from DOL EBSA — verify with linked source filings below.

AMEREN CORPORATION

This 401(k) plan holds $3.0B in total assets and serves 9,356 participants as of 2023. It is sponsored by AMEREN CORPORATION in Missouri. The plan reported positive net income of $236M for the year.

Total Assets (2023)
$3.0B
Participants
9,356
State
Industry
Utilities

What the Filing Says About AMEREN CORPORATION SAVINGS INVESTMENT PLAN

AMEREN CORPORATION SAVINGS INVESTMENT PLAN is a 401(k) retirement plan sponsored by AMEREN CORPORATION, headquartered in Missouri. As of the 2023 Form 5500 filing, the plan reports $3.0B in total end-of-year assets and covers 9,356 participants across the Utilities industry. The sponsor's EIN on file with the U.S. Department of Labor is 431723446, and the plan has been effective since 1984-07-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $2.7B at the beginning of 2023 to $3.0B at year-end — a gain of 8.8%. Net assets (after liabilities) closed the year at $3.0B, with reported net income of $236M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows — a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

Financial Summary (2023)

Total Assets (Beginning of Year)$2.7B
Total Assets (End of Year)$3.0B
Net Assets (End of Year)$3.0B
Net Income$236M
Plan Type401(k)
Employer EIN431723446
Plan Effective Date1984-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (AMEREN CORPORATION)

Year Plans Participants Total Assets
2022 3 28,238 $9.9B
2023 2 19,512 $7.7B
2024 2 19,264 $8.0B

Nearby 401(k) Plans in Missouri

Peer 401(k) plans — same state, same plan type — ranked by total assets.

Frequently Asked Questions

How much money is in the AMEREN CORPORATION SAVINGS INVESTMENT PLAN?
As of the 2023 Form 5500 filing, AMEREN CORPORATION SAVINGS INVESTMENT PLAN holds $3.0B in total assets with 9,356 participants. It is sponsored by AMEREN CORPORATION.
What type of plan is AMEREN CORPORATION SAVINGS INVESTMENT PLAN?
AMEREN CORPORATION SAVINGS INVESTMENT PLAN is a 401(k) plan. It has been effective since 1984-07-01. The plan is filed with the U.S. Department of Labor under EIN 431723446.
Who sponsors the AMEREN CORPORATION SAVINGS INVESTMENT PLAN?
AMEREN CORPORATION SAVINGS INVESTMENT PLAN is sponsored by AMEREN CORPORATION, located in Missouri. The sponsor's EIN is 431723446 and the plan operates in the Utilities industry.
How did AMEREN CORPORATION SAVINGS INVESTMENT PLAN perform in 2023?
AMEREN CORPORATION SAVINGS INVESTMENT PLAN grew by 8.8% during 2023, moving from $2.7B to $3.0B in total assets. Net income was $236M.
Where can I find official filings for AMEREN CORPORATION SAVINGS INVESTMENT PLAN?
Official Form 5500 filings for AMEREN CORPORATION SAVINGS INVESTMENT PLAN are available through the U.S. Department of Labor's EFAST2 system. Search by EIN 431723446 or plan name at efast.dol.gov.
How does AMEREN CORPORATION SAVINGS INVESTMENT PLAN compare to other plans?
You can compare AMEREN CORPORATION SAVINGS INVESTMENT PLAN against other 401(k) plans on the plan type page, or view plans in Missouri on the state page. PlainRetire tracks the 5,000 largest retirement plans in the U.S. by total assets.

Explore PlainRetire

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) — original filing retrieval by EIN 431723446.

Reference: IRS Publication 560 — Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B — Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from official public datasets. See our methodology for details.